Livesey Brothers Mushrooms

My sister told me how she get spent compost from mushroom farms and get the final harvest of the mushrooms.  I have looked up mushroom farms, but I couldn't see any near me. 

The I read about Livesey Brothers from one of Waitrose's publication.  It is not the furthest diversion from Leicester, so I went to have a look.

They do sell composts, but I am not sure these one will regrow.  I did get a mixed pack and a king oyster pack.  Very fresh, very clean, excellent.  We will definitely shop there again.